Thanks for the additional info javol. The wheel set up is still fantastic looking even with the flatter front. The custom rims seems too costly so I'll go with the Vossen as well but do 19" because our roads are not too good.
Just saw your new Z4 side profile photos with the upgraded brakes. Looks good in the yellow as the BMW Performance Brakes
I've read that the rear electronics parking function is lost with after market brakes so did you manage to overcome this problem? Can you still engage the factory parking brakes?
Thanks again!